A big +1 for risky business - I've been listening to Patrick's podcast for well over five years and will happily advocate for the quality of the coverage.
Do you happen to have a screenshot of the BSOD, or could test it a second time to take a screenshot? I don't really have a free test server that I can crash anymore since I tested this morning when not a lot of people were at the office yet.
Maybe one day and exchange will create a developer email list where they let people know when the API changes (Bitstamp has had an awful history of breaking the API without warning).
I've just started to work with the Kraken API it is good. Their key signing/hashing auth is a little weird but the example clients are very useful.
Is there a way to get real time order book updates from the Kraken?
Another good API is Paymium's https://github.com/Paymium/api-documentation the most frustrating thing I find about exchanges API are race conditions when doing HFT, like submitting an order getting an ID, then asking about the ID to find it doesn't exist yet as the update hasn't be prorated yet.